Improvement



UNITED STATES PATENT OFFICE. i

AB'NER L. BAsMAN,-oF MINNEAPoLIs, MINNEsoTAn specification' forming part of 'Letters Patent No. 49.216, dated August B, 1865.

1'0 all 'whot it may concem: w

Be it known that I, ABNER L. BAUSMAN, of Minneapolis, in the county of Hennepin and State of Minnesota, ha've invented a new and Improved Snow-Flow; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable those skilled mold-boards or wings of the plow with double walls, so as to form a steam or hot-air cham! ber, by which the mold-boards or wings may, when the plow i s in use, be kept in a heated state and the snow'prevented from adhering thereto.

The invention consists, second, in the emfi ployment or use of rotary shovels and bruslies placed at the rear of the plow and over the rails, and constructed and arranged to operate in such a manner as to eifectually clearthe rails from snow after the plow has removed the superincumbent mass therefrom. The plow is com posed of two mold-boards or' wings, AA, arranged or placed in' V form, as shown in Fig. 2, the ang'le formed by their junction being over the center of the space between the two lines of rails of the road, the wings projecting some distance over the rails. These wings are constructed with double walls, so as to forma space or chamber, a, between them, into which cxhaust-steam or hot air is admitted from the locomotire through a pipe, B. w To the rear side of the plow there is secured a framing, O, constructed in any proper mam' ner to. support two shafts, D D, parallel with and directly over the two lines of rails of the road. These shafts D D attheir front parts ficient. These blades serve theoffice of shovels, i and directly behind these blades oneachshaft D there is a brush, F, constrncted of fla-t wires 11,'driven or otherwise fitted in Wooden cylinders c. These brnshes, however, may be constructed in Yarious ways. i f

On the rear of each shaft D there is keyed a pinion, d, and into these pinions Wheels e e, on a shaft, G, ```gear, thelatter being at right angles to the shafts D D, and receiving its motion by a belt, f, or by gcaring from the axle g on the forward truck of the locomotive` .The shafts D D rotatezin reverse di` rections, and the rotary shovels and brushes Or Call'- cast the snow from the rails to each side of the road, while the plow removes and casts aslde the superincumbent mass in'front.

In consequence ot' keeping the wliole area of the plow in a warm or heated state by means of the steam or hot air introduced into the` space ofI between the wallsof the wings ,the

snow is prcvented from adhering thereto and caused to slide t'reely off, thereby enabling' the iplow to work eficiently at all times.`

A Safety-valve, h, may be employed at the top of thepplow, or the rear of the wings may be perforated With small holes i, for the escape of the steam or hot air. i

Having thus described myin'ention, I claim a as new and desire to secure by Letters Patenti l. A snow-plow for railroads constructed with double walls to admit of a steam or hotA air'chamber between its exterior surfaces for the purpose of keepingsaid surfaces in a heated state to prevent the snow adhering' thereto, substantially as set forth.

2. The employment or use of rotaryshovcls and brushes placed at the rear of the plow and plow and rotary shovels and brushes, all arran gied to operate substantially as and for the purpose specificd:

ABNER L. BAUSMAN.

Witnesses:

Taos. Gnnnmnn, H. B. Hmoocx. 

